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Substance Name: Phosphoric acid [NF]
RN: 7664-38-2
UNII: E4GA8884NN
InChIKey: NBIIXXVUZAFLBC-UHFFFAOYSA-N

Note

  • Concise etchant is 37% H3PO4.

Molecular Formulas

  • H3-O4-P
  • H3-P-O4

Molecular Weight

  • 97.9937
 

Classification Codes

Classification Codes

  • Dental Materials
  • Human Data
  • Mutation Data
  • Pharmaceutic Aid (Solvent)
  • Skin / Eye Irritant

Superlist Classification Codes

  • Reportable Quantity (RQ) = 5000 lb
  • TWA 1 mg/m3
  • TWA 1 mg/m3; STEL 3 mg/m3

Names and Synonyms

Name of Substance

  • Phosphoric acid
  • Phosphoric acid [NF]

Synonyms

  • Acide phosphorique
  • Acide phosphorique [French]
  • Acido fosforico
  • Acido fosforico [Italian]
  • Acidum phosphoricum
  • Caswell No. 662
  • CCRIS 2949
  • EC 231-633-2
  • EINECS 231-633-2
  • EPA Pesticide Chemical Code 076001
  • Evits
  • FEMA No. 2900
  • Fosforzuuroplossingen
  • Fosforzuuroplossingen [Dutch]
  • HSDB 1187
  • Hydrogen phosphate
  • NSC 80804
  • o-Phosphoric acid
  • Orthophosphoric acid
  • Phosphoric acid
  • Phosphoric acid, ortho-
  • Phosphoricum acidum
  • Phosphorsaeure
  • Phosphorsaeureloesungen
  • Phosphorsaeureloesungen [German]
  • Sonac
  • UNII-E4GA8884NN
  • Wc-reiniger
  • White phosphoric acid

Systematic Names

  • Orthophosphoric acid
  • Phosphoric acid

Superlist Names

  • Phosphoric acid
  • Phosphoric acid [UN1805] [Corrosive]
  • UN1805

Registry Numbers

CAS Registry Number

  • 7664-38-2

FDA UNII

  • E4GA8884NN

Other Registry Numbers

  • 1021417-41-3
  • 1053657-23-0
  • 1196963-54-8
  • 178560-73-1
  • 28602-75-7
  • 959699-83-3

System Generated Number

  • 0007664382

Structure Descriptors

InChI

1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChIKey

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Smiles

P(O)(O)(O)=O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
man LDLo unreported 220mg/kg (220mg/kg)   "Poisoning; Toxicology, Symptoms, Treatments," 2nd ed., Arena, J.M., Springfield, IL, C.C. Thomas, 1970Vol. 2, Pg. 73, 1970.
rabbit LD50 skin 2740mg/kg (2740mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: EXCITEMENT
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 17-4/1970,
rat LC50 inhalation > 850mg/m3/1H (850mg/m3)   BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 17-4/1970,
rat LD50 oral 1530mg/kg (1530mg/kg) KIDNEY, URETER, AND BLADDER: HEMATURIA

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

SKIN AND APPENDAGES (SKIN): HAIR: OTHER
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 17-4/1970,